H-shaped steel beam multi-roll synchronous straightening machine

Abstract

This utility model relates to the field of metal beam straightening technology, specifically a multi-roll synchronous straightening machine for H-shaped steel beams. It includes a base, a leveling mechanism, and a multi-roll straightening mechanism. The leveling mechanism includes a first base and four leveling push rods connected to leveling cylinders. The multi-roll straightening mechanism includes a second base, a pair of transverse push plates, and a pair of vertical push plates. Straightening cylinders and several extrusion rollers are mounted on both the transverse and vertical push plates. This multi-roll synchronous straightening machine for H-shaped steel beams uses the leveling mechanism to initially level the H-shaped steel beams. Before entering the multi-roll straightening mechanism, the H-shaped steel beams are initially leveled, giving them preliminary straightness. This allows for more even force distribution during subsequent straightening using the multi-roll straightening mechanism, improving straightening accuracy, ensuring the quality of the straightened beam, and reducing straightening deviations and damage risks caused by initial irregularities in the beam.

Description

Technical Field

[0001] This utility model relates to the field of metal beam straightening technology, specifically to a multi-roll synchronous straightening machine for H-shaped steel beams. Background Technology

[0002] H-beams have advantages such as strong bending resistance and light structural weight, and are widely used in construction, bridges and other fields. During the processing and manufacturing process, H-beams are prone to deformation due to factors such as transportation and storage. Therefore, the straightening process has become a key link to ensure their dimensional accuracy and mechanical properties.

[0003] Utility model patent CN217964165U discloses a mobile bending steel beam straightening machine. This machine includes a base, with support blocks fixedly connected to both sides of the upper surface of the base. Fixed rods are fixedly connected to the rear ends of the upper surfaces of the two support blocks. A first sliding groove is formed in the middle of the front end of each fixed rod. A second servo motor is fixedly connected to one side of the fixed rod. The output end of the second servo motor passes through the fixed rod and is fixedly connected to a second screw in the first sliding groove. A moving block is threaded onto the body of the second screw. In this utility model, the position of the moving block can be adjusted according to the bending location, allowing for flexible and convenient movement. It can clamp the steel beam, ensuring it remains stationary during straightening, thus improving the straightening accuracy. The machine uses a hydraulic rod to push a pressing plate and contact blocks to compress the steel beam, thereby achieving the purpose of straightening the beam.

[0004] When the mobile bending steel beam straightening machine directly compresses and straightens long bent steel beams, it lacks a preliminary leveling process. For steel beams with large bends and long lengths, the initial irregular state of the steel beams can easily lead to uneven stress during the straightening process, resulting in poor straightening effect, difficulty in accurately controlling the final straightness of the steel beams, and potential damage to the steel beams due to localized stress concentration. In view of this, we propose an H-shaped steel beam multi-roll synchronous straightening machine. Utility Model Content

[0005] The purpose of this invention is to provide a multi-roll synchronous straightening machine for H-beams to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-roll synchronous straightening machine for H-beams includes:

[0008] Base;

[0009] The leveling mechanism is used to perform preliminary leveling of the H-beam. The leveling mechanism includes a first set with a hollow rectangular structure and four leveling push rods fitted inside the first set. Several leveling cylinders are fixed on the four outer surfaces of the first set. The piston rod end of the leveling cylinder is fixedly connected to the leveling push rod on the same side of the leveling cylinder. The H-beam passes through the four leveling push rods.

[0010] The multi-roller straightening mechanism is used to further straighten the H-beams that have been initially leveled by the leveling mechanism. The multi-roller straightening mechanism includes a second set with a hollow cuboid structure, a pair of transverse push plates arranged symmetrically in the second set, and a pair of vertical push plates arranged symmetrically in the second set. Several straightening cylinders are fixed on the four sides of the second set. The piston rods of the straightening cylinders located on the front and rear sides of the second set are fixedly connected to the two transverse push plates, respectively. The piston rods of the straightening cylinders located on the upper and lower sides of the second set are fixedly connected to the two vertical push plates, respectively. Several extrusion rollers are rotatably connected to the transverse and vertical push plates, and the extrusion rollers abut against the surface of the H-beam.

[0011] Preferably, a pair of first protrusions are fixed on both the first and last end faces of the first set, and a first overlapping roller is rotatably connected between each pair of first protrusions, with the H-shaped steel beam overlapping the first overlapping roller.

[0012] In this setup, the first roller can effectively support the H-shaped steel beam, reducing its frictional resistance when entering the leveling mechanism and ensuring smooth transport of the steel beam.

[0013] Preferably, the bottom end of the first base is provided with a plurality of first support legs, and the bottom ends of the first support legs are fixedly connected to the base;

[0014] In this configuration, the first support leg securely connects the first base to the base, enhancing the overall stability of the leveling mechanism.

[0015] Preferably, a pair of second protrusions are fixed on both the first and last end faces of the second set, and a second roller is rotatably connected between each pair of second protrusions, with the H-shaped steel beam overlapping the second roller.

[0016] In this configuration, the second roller supports and guides the H-beam to smoothly enter the multi-roller straightening mechanism, ensuring the smooth operation of the straightening process.

[0017] Preferably, the bottom end of the second base is provided with a plurality of second support legs, and the bottom ends of the second support legs are fixedly connected to the base;

[0018] In this configuration, the second support leg securely connects the second sleeve to the base, ensuring the structural stability of the multi-roller straightening mechanism during operation.

[0019] Preferably, the plurality of extrusion rollers on the horizontal push plate are arranged in a staggered manner with the plurality of extrusion rollers on the vertical push plate;

[0020] In this setup, the staggered arrangement of the extrusion rollers can apply multi-angle and multi-directional extrusion to the H-beam, improving the straightening effect and accuracy.

[0021] Preferably, a feeding mechanism is provided between the leveling mechanism and the multi-roller straightening mechanism. The feeding mechanism is used to deliver the H-shaped steel beam, which has been initially leveled by the leveling mechanism, into the multi-roller straightening mechanism for straightening.

[0022] Preferably, the feeding mechanism includes a pair of uprights fixedly connected to the base and a stop seat disposed on the top of the uprights. Several pushing cylinders are fixedly disposed on the top of the uprights. The piston rod end of the pushing cylinder is fixedly connected to the stop seat. An electric wheel is installed at the end of the stop seat. The wheel body of the electric wheel is in contact with the surface of the H-shaped steel beam.

[0023] In these two settings, the feeding mechanism can realize the automatic and stable conveying of H-beams from the leveling mechanism to the multi-roller straightening mechanism.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] This multi-roll synchronous straightening machine for H-shaped steel beams uses a leveling mechanism to initially level the H-shaped steel beams. Before entering the multi-roll straightening mechanism, the H-shaped steel beams are initially leveled, giving them a preliminary straightness. As a result, during the subsequent straightening process using the multi-roll straightening mechanism, the steel beams can be subjected to force more evenly, which helps to improve straightening accuracy, ensure the quality of the straightened steel beams, and reduce the risk of straightening deviations and damage caused by the initial irregularity of the steel beams. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the leveling mechanism in this utility model;

[0028] Figure 3 This is a schematic diagram of the installation of the leveling push rod in this utility model;

[0029] Figure 4 This is a schematic diagram of the multi-roller straightening mechanism in this utility model;

[0030] Figure 5 This is a schematic diagram of the transverse push plate in this utility model;

[0031] Figure 6 This is a schematic diagram of the vertical push plate in this utility model;

[0032] Figure 7 This is a schematic diagram of the feeding mechanism in this utility model;

[0033] The meanings of the labels in the diagram are as follows:

[0034] 100. Base;

[0035] 200. Leveling mechanism; 210. First base; 211. Leveling cylinder; 212. First boss; 220. Leveling push rod; 230. First overlapping roller; 240. First support leg;

[0036] 300. Multi-roller straightening mechanism; 310. Second sleeve; 311. Straightening cylinder; 312. Second boss; 320. Horizontal push plate; 330. Vertical push plate; 340. Extrusion roller; 350. Second overlap roller; 360. Second support leg;

[0037] 400. Feeding mechanism; 410. Upright pole; 411. Push cylinder; 420. Support seat; 421. Electric wheel. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Example 1

[0040] Please see Figures 1-6 A multi-roll synchronous straightening machine for H-shaped steel beams includes a base 100, a leveling mechanism 200 for initially leveling the H-shaped steel beams, and a multi-roll straightening mechanism 300 for further straightening the H-shaped steel beams initially leveled by the leveling mechanism 200.

[0041] like Figure 1 and Figure 2 As shown, in this utility model, the leveling mechanism 200 includes a first base 210 with a hollow rectangular parallelepiped structure and four leveling push rods 220 fitted inside the first base 210. The bottom end of the first base 210 is provided with several first support legs 240, the bottom ends of which are fixedly connected to the base 100, thus ensuring a stable connection between the first base 210 and the base 100 via the first support legs 240. A pair of first protrusions 212 are fixed to both the first and last end faces of the first base 210. A first roller 230 is rotatably connected between each pair of first protrusions 212. An H-shaped steel beam overlaps the first roller 230, which supports the H-shaped steel beam and reduces its frictional resistance during movement.

[0042] like Figures 1-3 As shown, specifically, several leveling cylinders 211 are fixed on the four outer surfaces of the first set 210. The piston rod end of the leveling cylinder 211 is fixedly connected to the leveling push rod 220 on the same side of the leveling cylinder 211. The H-shaped steel beam passes through the four leveling push rods 220. When the H-shaped steel beam is transported to the rectangular working area formed by the four leveling push rods 220, the circumferentially arranged leveling cylinders 211 are activated, so that the piston rod of the leveling cylinder 211 drives the corresponding leveling push rod 220 to perform four-way synchronous extrusion along the H-shaped steel beam, so that the H-shaped steel beam produces plastic deformation to eliminate the initial bending defect. As the H-shaped steel beam is continuously pushed into the leveling mechanism 200, the leveling cylinders 211 are repeatedly driven to push and pull back the leveling push rods 220, forming a continuous multi-pass leveling process to achieve the purpose of initially leveling the entire H-shaped steel beam.

[0043] like Figure 1 and Figure 4 As shown, the multi-roller straightening mechanism 300 further includes a second base 310 with a hollow cuboid structure, a pair of transverse push plates 320 arranged symmetrically in the second base 310, and a pair of vertical push plates 330 arranged symmetrically in the second base 310. The bottom end of the second base 310 is provided with several second support legs 360, the bottom ends of which are fixedly connected to the base 100, thus connecting the second base 310 to the base 100 via the second support legs 360. A pair of second protrusions 312 are fixed on both the first and last end faces of the second base 310. A second overlapping roller 350 is rotatably connected between each pair of second protrusions 312. An H-shaped steel beam overlaps the second overlapping roller 350, and the second overlapping roller 350 supports the H-shaped steel beam, allowing it to smoothly enter the multi-roller straightening area.

[0044] like Figure 1 and Figures 4-6As shown, in addition, several straightening cylinders 311 are fixed on the four sides of the second base 310. The piston rod ends of the straightening cylinders 311 located on the front and rear sides of the second base 310 are fixedly connected to two horizontal push plates 320 respectively. The piston rod ends of the straightening cylinders 311 located on the upper and lower sides of the second base 310 are fixedly connected to two vertical push plates 330 respectively. Several extrusion rollers 340 are rotatably connected to both the horizontal push plate 320 and the vertical push plate 330. The extrusion rollers 340 abut against the surface of the H-shaped steel beam. The extrusion rollers 340 on the transverse push plate 320 and the vertical push plate 330 are arranged in an alternating spatial arrangement. Through this asymmetrical layout design, when the straightening cylinder 311 is activated, the straightening cylinder 311 drives the transverse push plate 320 and the vertical push plate 330 to move the extrusion rollers 340 close to the H-shaped steel beam and apply extrusion force to the H-shaped steel beam. This allows the extrusion rollers 340 on the upper, lower, left and right sides of the second set 310 to push the four sides of the H-shaped steel beam. When the H-shaped steel beam moves axially, the straightening path formed by the alternating extrusion rollers 340 can straighten the H-shaped steel beam.

[0045] In this embodiment, the H-beam multi-roll synchronous straightening machine is used as follows: First, the H-beam is placed on the first overlapping roller 230 of the leveling mechanism 200, allowing it to pass between the four leveling push rods 220. Then, the leveling cylinder 211 is activated, driving the leveling push rods 220 to apply pressure to the H-beam from all sides, so that the bent H-beam is initially leveled by the pushing of the leveling mechanism 200. Next, the H-beam is continued to be pushed so that the initially leveled H-beam enters the multi-roll synchronous straightening machine. The straightening mechanism 300 is activated, and the straightening cylinder 311 is started, causing the straightening cylinder 311 to drive the horizontal push plate 320 and the vertical push plate 330 to move toward the H-shaped steel beam. As the horizontal push plate 320 and the vertical push plate 330 move, the extrusion rollers 340 on the horizontal push plate 320 and the vertical push plate 330 will contact and press against the H-shaped steel beam. Under the action of the extrusion rollers 340 around the H-shaped steel beam, the H-shaped steel beam passing through the multi-roller straightening mechanism 300 is further straightened.

[0046] Example 2

[0047] To facilitate the delivery of the H-beam, which has been preliminarily leveled by the leveling mechanism 200, to the multi-roller straightening mechanism 300 for straightening, such as... Figure 1 and Figure 7 As shown, a feeding mechanism 400 is provided between the leveling mechanism 200 and the multi-roller straightening mechanism 300.

[0048] Specifically, the feeding mechanism 400 includes a pair of uprights 410 fixedly connected to the base 100 and a stop 420 disposed on the top of the uprights 410. The feeding mechanism 400 is stably connected to the base 100 through the uprights 410. Several push cylinders 411 are fixedly fixed on the top of the uprights 410. The piston rod end of the push cylinder 411 is fixedly connected to the stop 420. An electric wheel 421 is installed at the end of the stop 420. The wheel body of the electric wheel 421 is in contact with the surface of the H-shaped steel beam. When the push cylinder 411 is working, it can push the stop 420 toward the H-shaped steel beam, so that the electric wheel 421 is in close contact with the surface of the H-shaped steel beam. Under the operation of the electric wheel 421, the friction generated when the electric wheel 421 rotates can drive the H-shaped steel beam to move smoothly, realizing automatic feeding from the leveling mechanism 200 to the multi-roller straightening mechanism 300.

[0049] It is worth noting that the electric wheel 421 involved in this utility model is existing conventional technology, and will not be described in detail here.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-roll synchronous straightening machine for H-beams, characterized in that, include: Base (100); The leveling mechanism (200) is used to perform preliminary leveling of the H-shaped steel beam. The leveling mechanism (200) includes a first base (210) with a hollow rectangular structure and four leveling push rods (220) fitted inside the first base (210). Several leveling cylinders (211) are fixed on the four outer surfaces of the first base (210). The piston rod end of the leveling cylinder (211) is fixedly connected to the leveling push rod (220) on the same side of the leveling cylinder (211). The H-shaped steel beam passes through the four leveling push rods (220). A multi-roller straightening mechanism (300) is used to further straighten the H-beams that have been initially leveled by the leveling mechanism (200). The multi-roller straightening mechanism (300) includes a second set (310) with a hollow rectangular parallelepiped structure, a pair of transverse push plates (320) arranged symmetrically in the second set (310), and a pair of vertical push plates (330) arranged symmetrically in the second set (310). Several straightening plates are fixed on the four sides of the second set (310). The piston rod ends of the straight cylinder (311) located on the front and rear sides of the second base (310) are fixedly connected to two transverse push plates (320), and the piston rod ends of the straight cylinder (311) located on the upper and lower sides of the second base (310) are fixedly connected to two vertical push plates (330). Several extrusion rollers (340) are rotatably connected on both the transverse push plate (320) and the vertical push plate (330), and the extrusion rollers (340) abut against the surface of the H-beam.

2. The H-beam multi-roll synchronous straightening machine according to claim 1, characterized in that: A pair of first protrusions (212) are fixed on both ends of the first set (210), and a first roller (230) is rotatably connected between each pair of first protrusions (212). The H-shaped steel beam is attached to the first roller (230).

3. The H-beam multi-roll synchronous straightening machine according to claim 1, characterized in that: The bottom end of the first base (210) is provided with a plurality of first support legs (240), and the bottom end of the first support legs (240) is fixedly connected to the base (100).

4. The H-beam multi-roll synchronous straightening machine according to claim 1, characterized in that: A pair of second protrusions (312) are fixed on both the first and last end faces of the second set (310). A second roller (350) is rotatably connected between each pair of second protrusions (312), and the H-shaped steel beam is attached to the second roller (350).

5. The H-beam multi-roll synchronous straightening machine according to claim 1, characterized in that: The bottom end of the second base (310) is provided with several second support legs (360), and the bottom end of the second support legs (360) is fixedly connected to the base (100).

6. The H-beam multi-roll synchronous straightening machine according to claim 1, characterized in that: The extrusion rollers (340) on the horizontal push plate (320) and the extrusion rollers (340) on the vertical push plate (330) are arranged in a staggered manner.

7. The H-beam multi-roll synchronous straightening machine according to claim 1, characterized in that: A feeding mechanism (400) is provided between the leveling mechanism (200) and the multi-roller straightening mechanism (300). The feeding mechanism (400) is used to deliver the H-beam that has been initially leveled by the leveling mechanism (200) to the multi-roller straightening mechanism (300) for straightening.

8. The H-beam multi-roll synchronous straightening machine according to claim 7, characterized in that: The feeding mechanism (400) includes a pair of uprights (410) fixedly connected to the base (100) and a stop (420) set on the top of the uprights (410). Several push cylinders (411) are fixed on the top of the uprights (410). The piston rod end of the push cylinder (411) is fixedly connected to the stop (420). An electric wheel (421) is installed at the end of the stop (420). The wheel body of the electric wheel (421) is in contact with the surface of the H-shaped steel beam.

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